* {
  box-sizing: border-box;
}

:root {
  --bg: #07111f;
  --panel: rgba(16, 31, 50, 0.88);
  --panel-2: rgba(24, 43, 66, 0.78);
  --line: rgba(148, 163, 184, 0.22);
  --text: #f8fafc;
  --muted: #a9bdd1;
  --cyan: #4ddcff;
  --green: #8fea47;
  --blue: #4f8cff;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 15%, rgba(35, 124, 163, 0.25), transparent 34rem),
    radial-gradient(circle at 85% 20%, rgba(74, 222, 128, 0.13), transparent 28rem),
    linear-gradient(180deg, #07111f 0%, #091828 50%, #06101d 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 5vw;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 17, 31, 0.84);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: #04111d;
  background: linear-gradient(135deg, var(--cyan), #b6f4ff);
  border-radius: 12px;
  box-shadow: 0 0 28px rgba(77, 220, 255, 0.28);
}

nav {
  display: flex;
  gap: 24px;
}

nav a,
.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

nav a:hover,
.footer-links a:hover {
  color: var(--text);
}

main {
  width: min(1180px, 90vw);
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  align-items: center;
  gap: 7vw;
  min-height: calc(100vh - 72px);
  padding: 70px 0;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: clamp(2.7rem, 6vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.hero-copy > p {
  max-width: 690px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  color: #05111d;
  background: linear-gradient(135deg, var(--cyan), #9eebff);
  border-color: transparent;
  box-shadow: 0 15px 45px rgba(77, 220, 255, 0.18);
}

.button.disabled {
  color: #7f93a8;
  background: rgba(255, 255, 255, 0.035);
}

.hero-note {
  margin-top: 18px;
  color: #7f93a8;
  font-size: 0.92rem;
}

.phone {
  width: min(340px, 78vw);
  margin: 0 auto;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 44px;
  background: linear-gradient(145deg, #13263d, #050a12);
  box-shadow: 0 45px 110px rgba(0, 0, 0, 0.48);
}

.phone-notch {
  width: 110px;
  height: 24px;
  margin: 0 auto -10px;
  border-radius: 0 0 18px 18px;
  background: #02050a;
}

.phone-screen {
  min-height: 625px;
  padding: 85px 22px 30px;
  text-align: center;
  border-radius: 34px;
  background:
    radial-gradient(circle at 50% 10%, rgba(77, 220, 255, 0.18), transparent 17rem),
    linear-gradient(180deg, #0c1d30, #07111f);
}

.mini-logo {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  margin: 0 auto 12px;
  color: #03101b;
  font-size: 2.2rem;
  background: linear-gradient(135deg, var(--cyan), #d8fbff);
  border-radius: 22px;
}

.phone-screen h2 {
  margin-bottom: 2px;
  font-size: 2rem;
}

.phone-screen > p {
  color: var(--muted);
}

.mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 11px;
  margin-top: 46px;
}

.mini-grid span {
  display: grid;
  place-items: center;
  min-height: 82px;
  padding: 8px;
  color: #dbeafe;
  font-size: 0.84rem;
  font-weight: 750;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(25, 49, 76, 0.72);
}

.section {
  padding: 100px 0;
}

.section-heading {
  max-width: 730px;
  margin-bottom: 42px;
}

.section h2 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.04em;
}

.section-heading p,
.callout p {
  color: var(--muted);
  line-height: 1.7;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature {
  min-height: 240px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(145deg, var(--panel), rgba(11, 23, 39, 0.8));
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.16);
}

.icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 34px;
  color: var(--cyan);
  font-weight: 900;
  border: 1px solid rgba(77, 220, 255, 0.45);
  border-radius: 14px;
  background: rgba(77, 220, 255, 0.08);
}

.feature h3 {
  margin-bottom: 12px;
  font-size: 1.28rem;
}

.feature p {
  color: var(--muted);
  line-height: 1.65;
}

.callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  margin: 50px 0 110px;
  padding: 50px;
  border: 1px solid rgba(77, 220, 255, 0.25);
  border-radius: 28px;
  background:
    radial-gradient(circle at 80% 50%, rgba(77, 220, 255, 0.12), transparent 24rem),
    var(--panel);
}

.callout > div {
  max-width: 740px;
}

footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  padding: 42px 5vw;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: rgba(3, 10, 18, 0.52);
}

footer strong {
  color: var(--text);
}

footer p {
  margin: 7px 0 0;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.copyright {
  grid-column: 1 / -1;
  font-size: 0.86rem;
}

.legal {
  max-width: 850px;
  padding: 80px 0 110px;
}

.legal h1 {
  font-size: clamp(2.6rem, 6vw, 4.8rem);
}

.legal section {
  margin-top: 34px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
}

.legal h2 {
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.legal p {
  color: #c2d0de;
  line-height: 1.75;
}

.legal a {
  color: var(--cyan);
}

@media (max-width: 900px) {
  nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-copy > p {
    margin-left: auto;
    margin-right: auto;
  }

  .actions {
    justify-content: center;
  }

  .phone {
    margin-top: 30px;
  }

  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .callout {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 620px) {
  main {
    width: min(92vw, 1180px);
  }

  .topbar {
    min-height: 64px;
    padding: 0 4vw;
  }

  .hero {
    min-height: auto;
    padding: 70px 0;
  }

  h1 {
    font-size: 3rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 70px 0;
  }

  .callout {
    padding: 28px;
    margin-bottom: 80px;
  }

  footer {
    grid-template-columns: 1fr;
  }

  .footer-links {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .copyright {
    grid-column: auto;
  }
}